Welcome to Bullshido, the best Martial Arts forum on the entire Internet, ccualumni. Seriously, you won't regret your choice to join us. We're a great bunch of folks, except for Hannibal. And Sirc. And TaiGip. And MMA Kid. And... well, you get the point.

...Well, the best thing to do would probably be to go take a few lessons at a boxing gym (assuming you just want to learn a workout routine and not really get into boxing/MT) and ask them all the questions you can think of. Hell, you might actually really get into it and enjoy the training. You could also try this guy's website:

He has some pretty cool home workout stuff as well. Personally I like to warm up by shadow boxing for a couple of rounds. Then do a round of just jabs but with movement. After that I open up to combos, but always with movement. In and out and lateral. Unless you're trying to learn something very specific I feel like it's sort of detrimental to just stand in front of the bag and throw punches one at a time. There are a number of people from GA in this forum I'm sure if you're interested someone can point you in the direction of a good gym.

In boxing movies and anime, in regards to the speedbag I only see people do that rolling motion with their fists, is that to build tempo? Do people do anything else with it? I realize putting more power into it or using more RoM would slow it down too much, but I wonder if gradually very good guys slowly use more RoM as their speed develops?